Heart Rate Based Calorie Burn Calculator

These two heart rate based calorie burn calculators (also known as "heart rate based caloric expenditure calculators") provide an estimate of the rate at which you are burning calories during aerobic (i.e. cardiorespiratory) exercise, based on your average heart rate while performing the exercise.

Calculate Calories Burned Based on Heart Rate

Gender

Age

Weight

Activity Duration

Average Heart Rate

Note: This calculator provides gross calorie burn estimates. If you want to convert the estimate to net calorie burn, memorize the number and click here. If you want to learn more about net and gross calorie burn, read the Net Versus Gross Calorie Burn article.

Another Note: This page has two separate calculators. This first one does not require you to know your VO2max, but the one below it does. If you know your VO2max you might want to try the calculator below this one, as it is considered to be slightly more accurate. If you want to estimate your VO2max, click here.

Calculate Calories Burned Based on Heart Rate (for known VO2max)

You need to know your VO2max to use this calculator. If you don't know your VO2max you should use the calculator above. If you want to estimate your VO2max, click here. If you want to learn about VO2max, click here.

Gender

Age

Weight

Activity Duration

VO2max

Average Heart Rate

Note: This calculator provides gross calorie burn estimates. If you want to convert the estimate to net calorie burn, memorize the number and click here. If you want to learn more about net and gross calorie burn, read the Net Versus Gross Calorie Burn article.

About These Calculators

During exercise your muscles must burn calories to fuel their contractions. The conversion of calories from their stored nutrient state to the form that can be burned by your muscle cells is achieved, during aerobic exercise, through the process of cellular respiration, which requires oxygen, and the delivery of oxygen through your bloodstream to your active muscle cells is directly related to your heart rate. It is this relationship that allows you to predict your energy expenditure (i.e. calorie burn) from your heart rate. Essentially, with increased exercise intensity your muscles must burn more calories, and so your heart must beat faster to provide the oxygen necessary to convert those calories to the form of energy that can be burned by your muscles.

The experimental data on which this calculator is based covers an exercise intensity level that ranges from between 41% to 80% of VO2max. The calculator will not provide an estimate of heart rate based calorie burn below 41% of VO2max (or roughly 64% of maximum heart rate according to the Swain et al. correlation) because the relationship between heart rate and calorie burn is not considered to be reliable below the test data lower limit. The calculator does, however, provide an estimate of heart rate based calorie burn above the test data upper limit of 80% of VO2max (or roughly 89% of maximum heart rate according to the Swain et al. correlation), up to a maximum heart rate of 200 beats per minute, to enable users with above average maximum heart rates, and those exercising at high intensity levels, to make use of the calculator. Users should therefore note that any estimation of calorie burn above 80% of VO2max (or roughly 89% of maximum heart rate) is based on an extrapolation (i.e. an assumption that the data correlation holds outside the limits of the gathered data points) of the experimental data rather than an interpolation.

To ensure that you are performing a calorie burn estimate above the lower intensity limit of 41% of VO2max permitted by this calculator, a correlation between heart rate and VO2max is used within the calculator to convert the heart rate input from users to a percentage of VO2max. A determination of maximum heart rate is performed based on the formula defined by H Tanaka, KD Monhan, and DG Seals in their study titled "Age-predicted maximal heart rate revisited" and, subsequently, a conversion from percentage of maximum heart rate to percentage of VO2max is performed according to a linear regression formula (shown below) derived by ShapeSense.com from experimental data gathered by DP Swain, KS Abernathy, CS Smith, SJ Lee, and SA Bunn for their study titled "Target heart rates for the development of cardiorespiratory fitness."

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